File: AD3RI003_E 02/2000/eI • 43
1
Q (l/min)
∆p (bar)
A
→ →
→ →
→ T
B
→ →
→ →
→ T
P
→ →
→ →
→ A
P
→ →
→ →
→ B
ORDERING CODE
PRESSURE DROPS
HYDRAULIC SYMBOL
E = Manual override
Max. operating pressure 320 bar
Max. pressure port T 160 bar
Min. recommended pressure 15 bar
Max. flow 25 l/min
Min. flow 2 l/min
Setting ranges: Spring 1 15 ÷ 50 bar
Spring 2 20 ÷ 140 bar
Spring 3 50 ÷ 320 bar
Fluid viscosity 10 ÷ 60 mm
2
/s
Fluid temperature -20°C ÷ 75°C
Max. contamination level class 10 in accordance
with NAS 1638 with filter ß
25
≥75
Weight 2,3 Kg
AD.3.RI... AUTOMATIC RECIPROCATING
VALVES
CETOP 3
Support plane
specifications
Fixing screws UNI 5931 M5x40
with material specifications min. 8.8
Tightening torque 5 Nm / 0.5 Kgm
This valve type is characterized by
fully hydraulic operation, as it takes
advantage of the system pressure
rise to cause an automatic and con-
tinuous inversion of the utilization.
The changeover takes place when
the system pressure exceeds the in-
version valves calibration pressure,
and therefore also in not predeter-
mined positions. At cylinder stroke
end, the overall maximum pressure
valve should be adjusted on a value
30% higher than the system operating
pressure.
The inverter valves pressure calibra-
tion values should be 15% lower than
that of the overall maximum pressure
valve, and 15% higher than the maxi-
mum operating pressure.
Note: to operate the push button emer-
gency, a minimum pressure of 3 bar
on the actuator is needed.
AD.3.RI...
AD Directional valve
3 CETOP 3/NG6
RI Automatic reciprocating valve
hydraulically operated
automatic reciprocation
211 Scheme
Z No voltage
* Setting ranges:
1 = 15 ÷ 50 bar
2 = 20 ÷ 140 bar
3 = 50 ÷ 320 bar
** 00 = No variant
V1 = Viton
3 Serial No.
